Bulimia Nervosa

Bulimia is a serious eating disorder that typically includes symptoms of bingeing and purging. Our experts explain common bulimia symptoms, treatment options, health risks and more.

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What is bulimia?

Bulimia nervosa – more commonly known as "bulimia" – is an eating disorder characterized by patterns of bingeing (consuming a large amount of food in a short amount of time) and purging (eliminating calories consumed) in order to lose weight. Bulimia is a debilitating condition often accompanied by other mental health issues. 

What causes bulimia?

Bulimia is caused by multiple different factors, including biological, psychological and sociocultural. There is no one single cause of bulimia. However, if you have a close relative who struggled with bulimia, you may be more likely to experience symptoms of this eating disorder.  

Biological causes of bulimia

While genetic risk plays an important role in the development of bulimia, not all individuals with a family history of this disorder will develop the illness. And, many individuals with no known genetic link to eating disorders develop bulimia.


More than 50 percent of the risk of developing an eating disorder is based on your genetics, underscoring a strong familial component to these illnesses. In fact, a woman with a mother or sister who has bulimia is four times more likely to develop bulimia as well.

Personality traits

Personality traits are believed to be inherited, and a distinct set of traits has been found to be common among those at highest risk for bulimia. Traits like the following tend to characterize those struggling with bulimia:

  • High impulsivity
  • Unstable moods
  • Emotional intensity
  • Difficulty seeing the “big picture”
  • Cognitive rigidity

Psychological causes of bulimia

Psychological factors, in conjunction with biological and social influences, can play an important role in the development of bulimia. We have learned that there are certain characteristics and experiences that are common to individuals with bulimia (including perfectionism, low self-esteem and a history of trauma), that may place a person at greater risk for the illness. These factors are often considered to be maintaining features that contribute to the perpetuation of the illness and can be directly targeted during treatment.

Low self-esteem

When one is experiencing low self-esteem, it can cause feelings of depression which can contribute to the development of eating disorder behaviors. Sources of low self-esteem are varied and can include childhood experiences, temperament styles, and other mental health conditions.


Perfectionism refers to a personality style where an individual strives for flawlessness, is highly concerned with approval, and may be extremely self-critical regarding performance. Mistakes are often viewed as personal failures – and something to be avoided at all cost. For individuals with bulimia, high levels of perfectionism can be seen within the illness (e.g., strict rules around eating and food) as well as outside of the illness (e.g., extremely high standards and expectations for themselves in academics, work, etc.).

Social and cultural causes of bulimia

Social and cultural factors (social networks, media influence and cultural norms relating to eating and appearance) have been linked to bulimia. This includes the pursuit of the “ideal body” and the overvaluation of appearance as a measure of success and worth.

Messages promoting unrealistic beauty standards that place high value on achieving a certain look (thinness, muscularity) can create pressure to engage in behaviors, like dieting, that place certain persons at greater risk. Other social influences include involvement in specific activities, groups or occupations that emphasize weight and appearance.

Trauma history

Research shows that many patients who are struggling with an eating disorder have experienced a traumatic event in their lifetime [1]. This is particularly true for patients who have bulimia-spectrum eating disorders [2]. Traumatic experiences, with or without a PTSD diagnosis, can lead to disordered eating behaviors as the person attempts to cope with the distressing effects of the traumatic event.

[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3966425/
[2] Brewerton, T. D. (2007). Eating Disorders, Trauma, and Comorbidity: Focus on PTSD. Eating Disorders,15(4), 285-304. https://doi.org/10.1080/10640260701454311

The thin beauty ideal

Western societies equate thinness with female beauty and success, a condition known as the “thin beauty ideal.” [3] Studies have demonstrated that cultural pressures to achieve the thin beauty ideal can lead to increased body dissatisfaction and weight concerns, which may then contribute to the development of bulimia. Western norms for male bodies emphasize extreme muscularity in an equally unrealistic standard. With modern developments like social media, western ideals and values have been disseminated globally. Recent studies have demonstrated increases in eating disorders in non-western cultures as well as minority groups.

[3] Morrissey, R. A., Gondoli, D. M., & Corning, A. F. (2019). Reexamining the restraint pathway as a conditional process among adolescent girls: When does dieting link body dissatisfaction to bulimia? Development and Psychopathology, 32(3), 1031–1043. https://doi.org/10.1017/s0954579419001287

Pressure from social media

With social media being a major influence on culture today, there are many negative effects that can lead to disordered eating and bulimia [4]. Being bombarded with media images of extremely thin models, for example, promotes the internalization of weight stigma and the need to control weight. On social media, there are many images of "perfection", diet talk and before-and-after images that can influence eating disorder development and maintenance.

[4] Rounsefell, K., Gibson, S., McLean, S., Blair, M., Molenaar, A., Brennan, L., Truby, H., & McCaffrey, T. A. (2019). Social media, body image and food choices in healthy young adults: A mixed methods systematic review. Nutrition & Dietetics, 77(1), 19–40. https://doi.org/10.1111/1747-0080.12581

Bulimia symptoms

Bulimia is an isolating, secretive illness that prevents many people from enjoying a full and rewarding life. You might be wondering, how does bulimia start? We review common bulimia symptoms here.

Common bulimia symptoms

What do people with bulimia experience with this eating disorder? Although symptoms may vary per patient, we’ve listed common symptoms of bulimia nervosa below so you can understand this serious condition in more detail.

View more bulimia warning signs here.

"Bulimia face" and other symptoms to watch for

The difference between bulimia and anorexia

Bulimia and anorexia are often confused, because people with each disorder can engage in similar behaviors of bingeing, purging, and restricting behaviors. Here are some similarities and differences between the two eating disorders:

  • Both eating disorders focus on weight and body image.
  • Individuals with anorexia nervosa are commonly underweight, while individuals with atypical anorexia may live in larger bodies.
  • A person cannot be diagnosed with both bulimia and anorexia at the same time, although an individual may experience both disorders separately over the course of their illness.

Bulimia symptoms vs. purging disorder symptoms

Bulimia and purging disorder (which is included in the OSFED category of diagnoses) are similar in that individuals with both disorders engage in compensatory purging behaviors. However, people who have purging disorder typically endorse purging after eating an average-sized meal or snack, whereas people who have bulimia more commonly purge following a binge episode.

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Bulimia health risks

There are many serious health risks associated with bulimia. Bingeing and purging, particularly recurrent and/or chronic episodes, have profound negative effects on the body’s systems.

Long term effects of bulimia

Bulimia treatment

Treatment for bulimia at Eating Recovery Center involves a thoughtful fusion of medical, psychiatric, therapeutic and dietary interventions.

How is bulimia treated?

Recovering from bulimia is a marathon, not a sprint. The initial focus in bulimia treatment is to achieve medical and psychiatric stabilization. 

Medical stabilization

Our medical experts understand the urgent need to safely “detox” from bulimia and purging behaviors. Patients that cease purging will often experience abdominal pain and constipation after stopping their laxatives or they may experience significant edema, resulting in weight gain. The edema is a consequence of chronic severe volume depletion from loss of fluids (Pseudo-Bartter’s Syndrome). This syndrome is severely worsened by overuse of a rapid infusion of IV saline fluids used in most medical settings (for treatment of low blood pressure, dehydration, hypokalemia and alkalosis), creating a potentially dangerous scenario for patients.

Weight restoration

While many patients suffering with bulimia are a normal weight at the time of admission, some may require weight restoration in addition to other stabilization efforts. 

Medications for bulimia

Prozac (Fluoxetine) is the only FDA-approved medication for the treatment of bulimia. Medication may also be prescribed for comorbid diagnoses like mood disorders and/or anxiety disorders.

Therapy for bulimia

Following stabilization, patients will engage in a thoughtful curriculum of individual, group, family and experiential therapy, as well as nutritional counseling and education. Changing ingrained bingeing/purging behaviors is hard and you’ll need support. As your body begins to heal, then your team can begin to help you through the process of healing and lead you to recovery.

Individual and group therapy

Based on ground-breaking, evidence-based research, Eating Recovery Center offers therapeutic interventions proven to address the eating disorder and help our patients achieve lasting recovery. Individual counseling is a part of treatment at every level of care for patients with bulimia. In this collaborative relationship, the patient and their therapist will monitor the patient’s progress toward their treatment goals, and explore specific situations and emotions that the patient encounters on their recovery journey. Daily groups offer professional and peer support and allow you to learn new coping skills and ways to manage stress.

View our eating disorder therapies.

Family support and education

Family counseling is an important adjunct to individual counseling in the treatment of bulimia and focuses on psychoeducation about the disorder and helping family members develop coping skills to support their loved one’s recovery. Family counseling is included in treatment at most levels of care.

View eating disorder family support options.

Bulimia recovery meal planning

In treatment, patients collaborate with registered dietitians to understand the patterns of their binge/purge behaviors and learn how to interrupt these behaviors. The dietitian and patient will collaborate to increase the patient’s flexibility with a wide variety of food types, to prepare the patient to continue new patterns of eating after the end of treatment. Bulimia symptoms will be carefully monitored and managed by our staff. If this is not accomplished, patients often resume purging behaviors to alleviate uncomfortable symptoms and manage anxiety related to the discomfort.

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Bulimia Treatment Centers

Our eating disorder treatment centers across the nation provide specialized bulimia treatment for diverse patients of all ages and at all levels of care. Learn more about our program offerings.